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BMW 6 Convertible – 640 i petrol

F12 · 235 kW / 320 hp

2012 - 2018 · Petrol

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Car Details

Details may vary by version.

Engine

Fuel
Petrol
Made
2012 - 2018
Engine code
N55B30A
Engine size
2,979 cc (3 litres)
Engine power
320 hp (235 kW) at 5,800 to 6,000 rpm
Torque (pulling power)
450 Nm at 1,300 to 4,500 rpm
Cylinders
6, in a row (inline)
Turbo
Turbo
Fuel injection
Direct injection
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Valves
24 (4 per cylinder)
Bore x stroke
84 x 89.6 mm
Compression ratio
10.2:1
Engine position
Front, lengthways (longitudinal)
Catalytic converter
Three-way catalytic converter

Fluids and capacities

Engine oil amount
6.5 litres
Engine oil grade
0W-30, 0W-40, 5W-30 or 5W-40
Coolant
9.3 litres
Fuel tank
70 litres

Gearbox and drive

Gearbox
8-speed automatic
Driven wheels
Rear-wheel drive

Wheels, brakes, suspension and steering

Tyre size
225/55 R17, 245/45 R18, 275/45 R18 or 245/40 R19 (and 3 more)
Wheel (rim) size
8J x 17, 8J x 18, 9J x 18 or 8.5J x 19 (and 3 more)
Front brakes
Discs or Ventilated discs
Rear brakes
Discs or Ventilated discs
Steering
Rack and pinion, electric power steering
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Front suspension
Double wishbone
Rear suspension
Independent multi-link suspension

Size and weight

Body style
Convertible
Seats
4
Doors
2
Length
4,894 mm
Width
1,894 mm
Height
1,365 mm
Weight (empty)
1,820 to 1,840 kg
Ground clearance
123 mm
Boot space
300 litres
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Boot space, rear seats folded
350 litres
Wheelbase
2,855 mm
Front track
1,600 mm
Rear track
1,665 mm
Turning circle
11.7 metres
Maximum weight (loaded)
2,290 to 2,325 kg
Load it can carry
450 to 505 kg

Speed and fuel use

Fuel use, mixed driving
7.6 to 7.9 l/100 km (about 12.7 to 13.2 km per litre)
Fuel use in town
10.6 to 11 l/100 km (about 9.1 to 9.4 km per litre)
Fuel use on the highway
5.8 to 6.2 l/100 km (about 16.1 to 17.2 km per litre)
Top speed
250 km/h
0 to 100 km/h
5.5 to 5.7 seconds
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CO2 emissions
176 to 185 g/km
Emission standard
Euro 6 or Euro 5

Fuel use is from official tests; town driving usually uses more.

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Air drag (Cd)
0.3 to 0.31